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Chiang Mai

$443+ Cheap flights from O'Hare Intl (ORD) to Chiang Mai (CNX)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/13. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CNX
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago O'Hare Intl to Chiang Mai are usually found in February or September, booked 13 days in advance, depart on a Tuesday or Wednesday and return on a Friday

Cheap flight deals from O'Hare Intl to Chiang Mai

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Chiang Mai (CNX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 17, 2025.

Round-trip from

$788
(Ovago)

One-way from

$443
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$1,018
From Chicago O'Hare Intl to Chiang Mai
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One-way flight from Chicago O'Hare Intl to Chiang Mai
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Highest demand for flights based on searches. 21% potential increase in price ($362 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($45 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from O'Hare Intl to Chiang Mai

Cheapest flights from O'Hare Intl to Chiang Mai
Explore the most affordable flight options available from O'Hare Intl to Chiang Mai. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This Ovago deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/52:35 pmORD - CNX
1 stop39h 15mCathay Pacific
Sun 11/167:40 pmCNX - ORD
1 stop30h 15mCathay Pacific
Deal found 9/15$788
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/76:45 amORD - CNX
2 stops27h 10mDelta
Sun 10/1911:15 pmCNX - ORD
1 stop22h 15mDelta
Deal found 9/15$850
This Ovago deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/52:35 pmORD - CNX
1 stop39h 15mCathay Pacific
Tue 11/187:40 pmCNX - ORD
1 stop30h 20mCathay Pacific
Deal found 9/15$901
This Ovago deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/112:35 pmORD - CNX
1 stop39h 15mCathay Pacific
Tue 11/257:40 pmCNX - ORD
1 stop30h 15mCathay Pacific
Deal found 9/17$918
This oojo deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/52:40 pmORD - CNX
1 stop39h 10mMultiple Airlines
Sun 11/1610:10 amCNX - ORD
2 stops39h 50mMultiple Airlines
Deal found 9/15$931
This Travelocity deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/104:25 pmORD - CNX
2 stops28h 00mMultiple Airlines
Thu 11/2010:10 amCNX - ORD
2 stops34h 10mMultiple Airlines
Deal found 9/15$942
This FlightHub deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1111:30 pmORD - CNX
1 stop22h 05mEVA Air
Tue 11/257:45 pmCNX - ORD
2 stops36h 50mEVA Air
Deal found 9/15$944

Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl to Chiang Mai that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 17, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Chiang Mai that are best for you.

Fly from

O'Hare Intl

Fly to

Chiang Mai

Route

Depart

Return

Price

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Tue 10/7

6:45 am-9:55 pm

2 stops27h 10m

Chiang Mai

Sun 10/19

11:15 pm-9:30 am

1 stop22h 15m

$850

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Wed 10/8

6:45 am-9:55 pm

2 stops27h 10m

Chiang Mai

Sun 10/19

11:15 pm-9:30 am

1 stop22h 15m

$850

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Tue 11/11

2:35 pm-6:50 pm

1 stop39h 15m

Chiang Mai

Tue 11/25

7:40 pm-12:55 pm

1 stop30h 15m

$918

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Wed 11/5

2:35 pm-6:50 pm

1 stop39h 15m

Chiang Mai

Tue 11/18

10:35 am-12:55 pm

1 stop39h 20m

$920

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Tue 11/11

11:30 pm-10:35 am

1 stop22h 05m

Chiang Mai

Tue 11/25

12:10 pm-7:35 pm

2 stops44h 25m

$945

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Wed 11/5

11:30 pm-7:00 pm

2 stops30h 30m

Chiang Mai

Tue 11/18

7:45 pm-7:35 pm

2 stops36h 50m

$983

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Thu 10/30

12:30 am-7:00 pm

2 stops30h 30m

Chiang Mai

Mon 11/10

10:10 am-7:35 pm

2 stops46h 25m

$1,021

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Sat 11/1

3:35 pm-9:55 pm

2 stops42h 20m

Chiang Mai

Sat 11/15

6:35 am-12:55 pm

2 stops43h 20m

$1,029

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Mon 11/3

11:30 pm-9:20 am

2 stops44h 50m

Chiang Mai

Mon 11/10

10:10 am-7:35 pm

2 stops46h 25m

$1,049

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Mon 10/6

12:30 am-2:50 pm

2 stops26h 20m

Chiang Mai

Sun 10/19

9:10 pm-8:45 pm

2 stops35h 35m

$1,052

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 15 results
1
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Best time to book a flight from O'Hare Intl to Chiang Mai

Have a flexible travel schedule? Discover the best time to fly to Chiang Mai from O'Hare Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Chicago O'Hare Intl Airport to Chiang Mai

How far ahead should I book a flight from Chicago O'Hare Intl Airport to Chiang Mai?

Use this chart to determine the optimal time to book a round-trip flight from O'Hare Intl to Chiang Mai. Price data was last updated on September 12, 2025.

The best time to book flights from Chicago O'Hare Intl Airport to Chiang Mai is 13 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Chiang Mai?

Currently, September is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Chiang Mai (average of $975). Flying from Chicago O'Hare Intl Airport to Chiang Mai in June is currently the most expensive (average of $1,562). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ORD to CNX?

Find hourly flight availability from O'Hare Intl to Chiang Mai. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

It’s optimal to fly from Chicago O'Hare Intl Airport to Chiang Mai at noon. By choosing this option you can save up to 17% on the cost of your flight, compared to a flight in the morning.

Reviews of airlines servicing Chiang Mai

Get insights into the airlines that provide service to Chiang Mai. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Chiang Mai. Reviews last updated September 17, 2025.
Peruse reviews from past customers who have flown with EVA Air, Korean Air, and Delta from Chicago O'Hare Intl Airport to Chiang Mai to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,237 reviews

Entertainment

8.0

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.6

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
EVA Air
8.4
Very good
1,237 reviews
EVA Air
8.4
Very good
1,237 reviews

Entertainment

8.0

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.6

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Korean Air
8.4
Very good
1,140 reviews
EVA Air
8.4
Very good
1,237 reviews

Entertainment

8.0

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.6

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Delta
8.0
Very good
7,961 reviews
EVA Air
8.4
Very good
1,237 reviews

Entertainment

8.0

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.6

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Cathay Pacific
7.6
Good
998 reviews
EVA Air
8.4
Very good
1,237 reviews

Entertainment

8.0

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.6

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to Chiang Mai. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Chiang Mai from Chicago O'Hare Intl?

    Chiang Mai (CNX), located 1.9 mi from the city center, is the airport you fly into when you book flights from Chicago O'Hare Intl to Chiang Mai. 4 airlines have flights to Chiang Mai from Chicago O'Hare Intl on a regular basis. Booking flights from Chicago O'Hare Intl to Chiang Mai should not be difficult; the airport handles an average of 0 inbound flights from Chicago O'Hare Intl per day.

  • How long is the flight from Chicago O'Hare Intl Airport to Chiang Mai?

    Airlines like Delta and Cathay Pacific fly from Chicago O'Hare Intl Airport to Chiang Mai in about 27h 10m. The time it takes to get you to your destination can typically vary by up to 12h 05m. There are 8211 mi between Chicago O'Hare Intl Airport and Chiang Mai. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Chicago O'Hare Intl Airport to Chiang Mai round-trip?

    According to our current data, Cathay Pacific ($933), Korean Air ($959), and EVA Air ($974) offers the cheapest pricing from Chicago O'Hare Intl Airport to Chiang Mai. Cathay Pacific is 29% cheaper than the average price of flights available within the next 90 days to this destination.

  • Can I find deals for flights from O'Hare Intl to Chiang Mai that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to Chiang Mai flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to Chiang Mai?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from O'Hare Intl to Chiang Mai.

  • Can I find deals for business class flights from O'Hare Intl to Chiang Mai?

    Yes. Cheapflights offers flight deals from O'Hare Intl to Chiang Mai by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Chiang Mai?

    Currently, September is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Chiang Mai (average of $975). Flying from Chicago O'Hare Intl Airport to Chiang Mai in June is currently the most expensive (average of $1,562). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 4 airlines flying from O'Hare Intl to Chiang Mai

Discover the top 4 airlines that operate flights from O'Hare Intl to Chiang Mai. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$933Average$1,347FlexibilityNo cancel feeOn-time72%
Korean AirCheapest$959Average$1,296FlexibilityNo cancel feeOn-time81%
EVA AirCheapest$974Average$1,444FlexibilityNo cancel feeOn-time74%
DeltaCheapest$1,059Average$1,388FlexibilityNo cancel feeOn-timeN/A

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